日常与健康
Everyday calculators for percentages, grades, health numbers and the small sums that come up around the house.
Calories Burned Calculator
kcal burned per session and per week, from MET tables.
Water Intake Calculator
Personal daily water target in liters and glasses.
Ideal Weight Calculator
Four classic formulas and the healthy-BMI range compared.
Body Fat Percentage Calculator
US Navy tape method: body fat, fat and lean mass.
Due Date Calculator
Estimated due date from LMP with cycle adjustment.
Bedtime & Sleep Cycle Calculator
Work back from your alarm in 90-minute sleep cycles.
BMI Calculator
Body Mass Index from height and weight, with category.
BMR & Calorie Calculator
Basal metabolic rate and daily calories by activity level.
Percentage Calculator
X% of a number, percent change, and “what percent is X of Y”.
Grade Calculator
Weighted final grade from assignments, plus what score you need.
GPA Calculator
Unweighted 4.0-scale GPA from course grades and credits.
Aspect Ratio Calculator
Resize width or height while keeping aspect ratio.
Unit Price Comparison
Which package is cheaper per unit? Compare two sizes.
Split the Bill
Divide any amount between people, with optional tip rounding.
Percentage Change Calculator
Calculate the percent increase or decrease between two numbers.
TDEE Calculator
Estimate daily calorie needs from age, size, and activity.
Ratio Calculator
Simplify a ratio and see its decimal form.
Pace Calculator
Running or walking pace from distance and time.